P2187... PCV and oil consumption
Ok... around a year ago my 2006 A4 2.0T went in for a a few issues. While it was at the dealer they pulled a few TSBs and replaced the PCV and something else... maybe in the throttle box?
Anyway, after the work I noticed that my oil consumption went from less than 1QT in 10,000 mile to 1QT every 1200 miles. Coincidence...? The dealer carried out a number of oil consumption checks and declared that all was good.
Recently I have noticed that the engine "bogs down" when I come to a stop, almost like it's gonna stall out. It has also started to throw a P2187 code every few hundred miles and this seems to coincide with coming to a stop and the engine returning to idle.
I've searched around the forums and have tried checking the vacuum with the oil filler cap removed. When I remove the cap, there is definitely some vacuum but the cap isn't overly difficult to remove. Also, with the cap removed, the engine bogs down even more and idle becomes very erratic. Do these symptoms suggest a bad PCV valve or is this normal for this car?
In my mind, I'm trying to tie the changing of the PCV in to the increased oil consumption but have read that this is unlikely?